Back when dinosaurs roamed the earth, people took pictures of the Tyrannosaurus Rex with film-based cameras that required them to drop their pics off at a Fotomat for processing. Then, instant pics in the form of Polaroid cameras came along and the term “instant gratification” was born. Today, most of us snap pics on phones because cameras are just another device that we don’t want to carry.

Now, documenting a person’s day, week, month, year, vacation or any event consists of hundreds if not thousands of photos because digital is easy and free. So what’s the best way to share all your pics in a fun, friendly and secure way? Well, that all depends on your lifestyle.

Facebook: When taking pics from your phone, you can easily upload and instantly share your images with your connections. The beauty of Facebook photos is that all 3,000 of your friends can enjoy them and comment on them. Using your PC is even easier when you are uploading entire albums. The bad thing is, once you upload to Facebook, you can’t expect the photos to ever be private. Even though you might lock down your privacy settings so only your friends can see them, it’s still very possible that your pics can be leaked.

Flickr: Flickr is a photo sharing site that you can always have in your back pocket via apps for iPhone, Windows 7, Android and more. Or use m.flickr.com from any mobile device to upload and share photos on the go. Share photos only with the people you want to with Flickr’s easy privacy settings. Flickr’s backed storage system makes sure you never lose another photo again.

Instagram: Share your photos in a simple photo stream with friends to see – and follow your friends’ photos with the click of a single button. Every day you open up Instagram, you’ll see new photos from your closest friends, and creative people from around the world. Share to Facebook, Twitter, and Tumblr too – it’s as easy as pie. It’s photo sharing, reinvented.

Dropbox: Most people don’t think of photo sharing when they think about Dropbox because Dropbox isn’t explicitly a photo sharing site. Dropbox is a free service that lets you bring together all your photos, docs and videos from anywhere. This means that any file you save to your Dropbox will automatically save to all your computers, phones and even the Dropbox website.

All of these sites require usernames and passwords for access. And like all web-based portals, I suggest a different password for each. If you install an application on your mobile, make sure your device is password protected. Another layer of protection (albeit inconvenient) is to set up these apps to require a password every time you access them.